octeontx2-pf: Unregister devlink on probe failure

When probe fails after devlink registration, the missing devlink unregister
call causing a memory leak.

Fixes: 2da4894 ("octeontx2-pf: devlink params support to set mcam entry count")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Link: https://patch.msgid.link/20260206182645.4032737-1-hkelam@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Author: Hariprasad Kelam

drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c

@@ -3315,6 +3315,7 @@ static int otx2_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 err_sriov_cleannup:
 	otx2_sriov_vfcfg_cleanup(pf);
 err_pf_sriov_init:
+	otx2_unregister_dl(pf);
 	otx2_shutdown_tc(pf);
 err_mcam_flow_del:
 	otx2_mcam_flow_del(pf);